Will I be ok with this set up

First of all let me start by thanking everyone who has contributed to the knowledge base on this forum; you guy's rock.

I ordered one of the Aopen pandora mini pc's along with the carnetics p1900 and plan to run the basics (GPS,Lilliput 629 and external sound card to amp). Do I need to go with a powered USB Hub if I only have the sound card and GPS receiver or can I get away with a reqular USB hub?